74LX1G70
SINGLE BUFFER
■
■
■
■
■
■
■
■
5V TOLERANT INPUTS
HIGH SPEED: tPD = 4.2ns (MAX.) at VCC = 3V
LOW POWER DISSIPATION:
ICC = 1µA (MAX.) at TA = 25°C
POWER DOWN PROTECTION ON INPUTS
AND OUTPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 24mA (MIN) at VCC = 3V
BALANCED PROPAGATION DELAYS:
tPLH ≅ tPHL
OPERATING VOLTAGE RANGE:
VCC(OPR) = 1.65V to 5.5V
(1.2V Data Retention)
IMPROVED LATCH-UP IMMUNITY
DESCRIPTION
The 74LX1G70 is an advanced high-speed CMOS
SINGLE BUFFER fabricated with sub-micron
silicon gate and double-layer metal wiring C2MOS
technology.
It is ideal for 1.65 to 5.5 VCC operations and low
power and low noise applications. The internal
circuit is composed of 3 stages including buffer
)
(s
t
c
u
d
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r
SOT23-5L
u
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P
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ORDER CODES
PACKAGE
t
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SOT23-5L
SOT323-5L
)
s
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ct
SOT323-5L
T&R
74LX1G70STR
74LX1G70CTR
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O
output, which provide high noise immunity and
stable output.
Power down protection is provided on input and
output and 0 to 7V can be accepted on inputs with
no regard to the supply voltage. It can be
interfaced to 5V signal environment for inputs in
mixed 3.3/5V system. All inputs and outputs are
equipped with protection circuits against static
discharge.
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PIN CONNECTION AND IEC LOGIC SYMBOLS
April 2004
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74LX1G70
INPUT EQUIVALENT CIRCUIT
)
s
(
ct
PIN DESCRIPTION
SYMBOL
1
2
4
3
NC
1A
1Y
GND
VCC
5
Not Connected
Data Input
Data Output
Ground (0V)
du
Symbol
Supply Voltage
DC Input Voltage
DC Output Voltage (VCC = 0V)
o
s
b
IOK
O
o
r
P
VI
e
t
e
l
IO
o
s
b
L
H
Y
L
H
O
)
Parameter
VO
IIK
A
Positive Supply Voltage
s
(
t
c
VO
let
NAME AND FUNCTION
ABSOLUTE MAXIMUM RATINGS
VCC
r
P
e
TRUTH TABLE
PIN N°
u
d
o
DC Output Voltage (High or Low State) (note 1)
Value
Unit
-0.5 to +7.0
V
-0.5 to +7.0
V
-0.5 to +7.0
V
-0.5 to VCC + 0.5
V
- 50
mA
DC Output Diode Current (note 2)
- 50
mA
DC Output Current
± 50
mA
DC Input Diode Current
ICC or IGND DC VCC or Ground Current per Supply Pin
Tstg
Storage Temperature
TL
Lead Temperature (10 sec)
± 50
mA
-65 to +150
°C
300
°C
Absolute Maximum Rating are those value beyond which damage to the device may occur. Functional operation under these condition is not
implied
1) IO absolute maximum rating must be observed
2) VO < GND, VO > VCC
2/10
74LX1G70
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC
Value
Supply Voltage (note 1)
Unit
1.65 to 5.5
V
0 to 5.5
V
Output Voltage (VCC = 0V)
0 to 5.5
V
Output Voltage (High or Low State)
V
mA
VI
Input Voltage
VO
VO
IOH, IOL
High or Low Level Output Current (VCC = 4.5 to 5.5V)
0 to VCC
± 32
IOH, IOL
High or Low Level Output Current (VCC = 3.0 to 3.6V)
± 24
mA
IOH, IOL
High or Low Level Output Current (VCC = 2.7 to 3.0V)
± 16
mA
IOH, IOL
High or Low Level Output Current (VCC = 2.3 to 2.7V)
±8
IOH, IOL
High or Low Level Output Current (VCC = 1.65 to 2.3V)
Top
dt/dv
t
e
l
o
bs
Test Condition
O
)
VCC
(V)
s
(
t
c
1.65 to 1.95
2.3 to 2.7
du
Low Level Input
Voltage
e
t
e
l
VOH
o
r
P
High Level Output
Voltage
so
b
O
VOL
Ioff
ICC
Input Leakage
Current
Power Off Leakage
Current
Quiescent Supply
Current
Min.
Max.
Min.
0.75VCC
0.75VCC
0.7VCC
0.7VCC
Max.
V
0.7VCC
0.25VCC
0.25VCC
2.3 to 2.7
0.3VCC
0.3VCC
3.0 to 5.5
0.3VCC
0.3VCC
1.65 to 4.5
IO=-100 µA
VCC-0.1
VCC-0.1
1.65
IO=-4 mA
1.2
1.2
2.3
IO=-8 mA
1.9
1.9
IO=-16 mA
2.4
2.4
V
V
IO=-24 mA
2.2
2.2
4.5
IO=-32 mA
3.8
3.8
1.65 to 4.5
IO=100 µA
0.1
0.1
1.65
IO=4 mA
0.45
0.45
2.3
IO=8 mA
0.3
0.3
IO=16 mA
0.4
0.4
IO=24 mA
0.55
0.55
4.5
IO=32 mA
0.55
0.55
1.65 to 5.5
VI = 0 to 5.5V
± 10
± 10
µA
0
VI or VO = 5.5V
10
10
µA
1.65 to 5.5
VI = VCC or GND
10
10
µA
3.0
II
-40 to 85 °C
1.65 to 1.95
3.0
Low Level Output
Voltage
°C
Value
0.7VCC
3.0 to 5.5
VIL
Unit
mA
r
P
e
DC SPECIFICATION
High Level Input
Voltage
-55 to 125 °C
0 to 10
2) VIN from 0.8V to 2V at VCC = 3.0V
VIH
ns/V
u
d
o
Input Rise and Fall Time (note 2)
Parameter
ct
-55 to 125
1) Truth Table guaranteed: 1.2V to 3.6V
Symbol
mA
±4
Operating Temperature
(s)
V
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74LX1G70
AC ELECTRICAL CHARACTERISTICS
Test Condition
Symbol
tPLH tPHL
Parameter
Propagation Delay
Time
VCC
(V)
1.65 to 1.95
2.3 to 2.7
3.0 to 3.6
4.5 to 5.5
1.65 to 1.95
2.3 to 2.7
2.7
3.0 to 3.6
4.5 to 5.5
CL
(pF)
RL
(Ω)
Value
-40 to 85 °C
ts = tr
(ns)
15
1MΩ
3.0
30
30
50
50
50
1000
500
500
500
500
2.0
2.0
2.5
2.5
2.5
Min.
Max.
Min.
Max.
2
2
1
1
2
2
1
1
1
12.0
7.0
4.7
4.1
7.5
5.5
5.2
4.2
3.7
2
2
1
1
2
2
1
1
1
12.0
7.0
4.7
4.1
7.5
5.5
5.2
4.2
3.7
CAPACITANCE CHARACTERISTICS
Parameter
VCC
(V)
CIN
Input Capacitance
CPD
Power Dissipation Capacitance
(note 1)
0
1.8
2.5
3.3
s
(
t
c
)-
b
O
so
let
fIN = 10MHz
ns
Value
TA = 25 °C
Min.
Unit
)
s
(
ct
u
d
o
r
P
e
Test Condition
Symbol
-55 to 125 °C
Typ.
Unit
Max.
4
pF
16
18
20
pF
1) CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current consumption without
load. (Refer to Test Circuit). Average current can be obtained by the following equation. ICC(opr) = CPD x VCC x fIN + ICC
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74LX1G70
TEST CIRCUIT
)
s
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ct
u
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P
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RT = ZOUT of pulse generator (typically 50Ω)
TEST CIRCUIT AND WAVEFORM SYMBOL VALUE
t
e
l
o
VCC
Symbol
1.65 to 1.95V
CL
15pF/30pF
RL
1MΩ/1000Ω
VIH
VCC
s
(
t
c
)-
VM
VCC/2
tr = tr
u
d
o
<2.0ns
s
b
O
2.3 to 2.7V
2.7 to 5.5V
15pF/30pF
15pF/50pF
500Ω
500Ω
VCC
VCC
VCC/2
VCC/2
<2.0ns
<2.5ns
WAVEFORM: PROPAGATION DELAY (f=1MHz; 50% duty cycle)
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74LX1G70
SOT23-5L MECHANICAL DATA
mm.
mils
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
0.90
1.45
35.4
57.1
A1
0.00
0.10
0.0
3.9
A2
0.90
1.30
35.4
b
0.35
0.50
13.7
C
0.09
0.20
3.5
D
2.80
3.00
110.2
E
1.50
1.75
e
so
0.95
H
2.60
L
0.10
b
O
3.00
)-
s
(
t
c
0.60
e
t
e
l
59.0
)
s
(
ct
51.2
19.7
u
d
o
Pr
7.8
118.1
68.8
37.4
102.3
118.1
3.9
23.6
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7049676C
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74LX1G70
SOT323-5L MECHANICAL DATA
mm.
mils
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
0.80
1.10
31.5
43.3
A1
0.00
0.10
0.0
3.9
A2
0.80
1.00
31.5
39.4
b
0.15
0.30
5.9
C
0.10
0.18
3.9
D
1.80
2.20
70.9
E
1.80
2.40
70.9
E1
1.15
1.35
e
0 .65
e1
1.3
L
0.10
bs
s
(
t
c
0.30
11.8
du
ro
P
e
t
e
l
o
45.3
O
)
)
s
(
ct
7.1
86.6
94.5
53.1
25.6
51.2
3.9
11.8
u
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74LX1G70
Tape & Reel SOT23-xL MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
A
MAX.
MIN.
13.0
7.086
C
12.8
13.2
0.504
D
20.2
0.795
N
60
2.362
0.512
0.519
)
s
(
ct
14.4
0.567
Ao
3.13
3.23
3.33
0.123
Bo
3.07
3.17
3.27
0.120
Ko
1.27
1.37
1.47
0.050
Po
3.9
4.0
4.1
P
3.9
4.0
4.1
o
s
b
s
(
t
c
u
d
o
r
P
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t
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l
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0.153
du
0.127
ro
P
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let
0.153
O
)
8/10
MAX.
180
T
s
b
O
TYP.
0.131
0.124
0.128
0.054
0.0.58
0.157
0.161
0.157
0.161
74LX1G70
Tape & Reel SOT323-xL MECHANICAL DATA
mm.
inch
DIM.
MIN.
TYP
MAX.
MIN.
TYP.
MAX.
A
175
180
185
6.889
7.086
7.283
C
12.8
13
13.2
0.504
0.512
0.519
D
20.2
N
59.5
0.795
60
T
60.5
)
s
(
ct
2.362
14.4
0.567
u
d
o
Ao
2.25
0.088
Bo
2.7
0.106
Ko
1.2
r
P
e
0.047
Po
3.9
4
4.1
P
3.8
4
4.2
let
0.153
o
s
b
0.149
0.157
0.161
0.157
0.165
O
)
s
(
t
c
u
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P
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t
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9/10
74LX1G70
)
s
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ct
u
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(s
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Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the
consequences of use of such information nor for any infringement of patents or other rights of third parties which may result from
its use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications
mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information
previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or
systems without express written approval of STMicroelectronics.
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All other names are the property of their respective owners
© 2004 STMicroelectronics - All Rights Reserved
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